[ 'trəʊfɪk , 'trɒfɪk ]
■ adjective
1》 Ecology relating to feeding and nutrition.
2》 (also tropic ) Physiology (of a hormone or its effect) stimulating the activity of another endocrine gland.
Origin
C19: from Gk trophikos , from trophē 'nourishment', from trephein 'nourish'.